Remove Spaces from String or Sentence Program in C++

C++ Program to Remove Spaces from String or Sentence

To wire this code we need to ask user for enter any sentense. Next we start checking space If space will be found, then start placing the next character from the space to the back until the last character and continue to check for next space to remove all the spaces present in the string.
We will not modify original string instead we will create a new string having all characters of input string except spaces.

Examples To Remove Spaces from a String in C++

Input: Hitesh Kumar
Output: HiteshKumar

Program Execution

• The program takes a sentence and stores in 'str' array.
• Using a for loop, if a space is encountered it is removed by shifting elements to the left.
• The resultant string is printed.

To understand below example, you have must knowledge of following C++ programming topics; String in C++, for remove space here we use For Loop in C++ and Array in C++.

Enter Any String: Sitesbay Make Easy Learning
String After Removing Spaces: SitesbayMakeEasyLearning

#include<iostream.h>
#include<conio.h>
#include<string.h>
#include<stdio.h>

void main()
{
   
clrscr();
	char str[80];
	int i=0, len, j;
	cout<<"Enter Any String: ";
	gets(str);
	len=strlen(str);
	for(i=0; i<len; i++)
	{
		if(str[i]==' ')
		{
			for(j=i; j<len; j++)
			{
				str[j]=str[j+1];
			}
		len--;
		}
	}
	cout<<"String After Removing Spaces: "<<str;
	getch();
}

Enter Any String: This is my Fist Code
String After Removing Spaces: ThisismyFirstCode

Remove Spaces from a String in C++

#include<iostream.h>
#include<conio.h>
#include<string.h>

void main()
{
    char input[100], output[100];
    int i, j;
     
    cout<<"Enter any string \n";
    cin.getline(input, 500);
     
    for(i = 0, j = 0; input[i] != '\0'; i++)
{
        if(input[i] != ' ')
		{
        // If current character is not a space character, 
        // copy it to output String
	    output[j++] = input[i];
	}
    }
    output[j] = '\0';

    cout<<"Input String are: "<<input<<endl;
    cout<<"String without spaces: "<<output;

    getch();
}

Input String are: Hitesh Kumar
String without spaces: HiteshKumar